A power actuator for automotive door latches. As inhibitors of PTPases the compounds of the invention are useful for the management, treatment, control and adjunct treatment of diseases in mammals mediated by PTPase activity. The refresh controller is configured to count the number of times the shingled write has been performed in a data area adjacent to the inner or outer circumference of a data area, in accordance with a weighting value set on the basis of a shingled write direction, and to instructs that a refresh process be performed, when the number of times counted exceeds a threshold value. A nut is disposed about the body for rotational movement with respect to the body and is in driving engagement with the jaw threads. The upper portion and the lower portion have different concentrations of surface treatment, thicknesses, andor surface areas. Various composition materials may be selected according to their thermal expansion coefficient and used to form resonator components on a substrate.